The untilted diffuse matter Bianchi V Universe
T. Christodoulakis, G. Kofinas, Vasilios Zarikas
TL;DR
This paper investigates a diffuse matter-filled Type V Universe, analyzing its anisotropic features, effects on the CMBR, and how coordinate transformations influence observed temperature anisotropies within current cosmological constraints.
Contribution
It provides a detailed analysis of anisotropies and CMBR distortions in a diffuse matter Type V Universe, considering coordinate transformations that preserve homogeneity.
Findings
The anisotropic behavior affects the CMBR temperature pattern.
Coordinate transformations alter the sky pattern of anisotropies.
Allowed parameter regions are constrained by current cosmological bounds.
Abstract
A diffuse matter filled Type V Universe is studied. The anisotropic behaviour, the distortion caused to the CMBR and the parameter region allowed by present cosmological bounds are examined. It is shown how the overall sky pattern of temperature anisotropies changes under a non-infinitesimal spatial coordinate transformation that preserves the Type V manifest homogeneity.
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